The Ocharaku Flat4-Kaede
The name Flat4 is derived from the description "Full-range 2-Element 4-Way Effect."
According to the company website this 4-way effect is as follows:
1st effect
Placement of opposed elements reduces mechanical vibration due to anti-resonance.
2nd effect
Twin element parallel drive improves sound pressure sensitivity of low to middle frequency sound.
3rd...

This digital stereo headset comes pack with a storage case , no more cables around just storage them after you use them. 3.5mm jack allows you to use this headset with a wide range of portable electronics.